* {
  margin: 0;
  padding: 0;
}

body {
  height: 100%;
  width: 100%;
  background-image: url("/images/public/位图/空间默认背景.jpg");
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

// 展示内容的盒子
.data {
  width: 650px;
  margin: 70px auto;
  padding-bottom: 300px;
}